St. Louis to Chicago (STL-ORD): nonstop upgrade & award space

United Airlines and American Airlines fly nonstop between St. Louis (STL) and Chicago (ORD), roughly 149 times a week. The timetable below shows the nonstop scheduled at 1h 23m to 1h 38m for the 258 miles. 2LNR checks confirmed upgrade and award space on American Airlines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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149
Flights a week, 4-week average
1h 23m to 1h 38m
Scheduled flight time
258 mi
Nonstop distance
Free
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St. Louis to Chicago flight schedule

Scheduled nonstop departures for STL to ORD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from St. Louis (STL) to Chicago (ORD)
Date Flight Airline Departs STL Arrives ORD Duration Aircraft
AA 1926American Airlines05:0006:261h 26mAirbus A319
UA 4423United Airlines06:0007:361h 36mCR5
AA 1997American Airlines07:2909:001h 31mBoeing 737-800
UA 2792United Airlines08:0009:311h 31mBoeing 737-800
UA 4601United Airlines09:0410:401h 36mCR5
UA 4517United Airlines10:2711:591h 32mCR5
AA 2208American Airlines11:3112:591h 28mAirbus A319
UA 4395United Airlines11:3513:111h 36mCR5
AA 6352American Airlines13:0614:391h 33mBombardier CRJ-700
AA 6468American Airlines13:0614:391h 33mBombardier CRJ-700
UA 1920United Airlines13:2915:001h 31mBoeing 737-700
AA 6355American Airlines14:4716:101h 23mBombardier CRJ-700
UA 5332United Airlines15:1116:461h 35mEmbraer E175
AA 4259American Airlines17:2719:051h 38mEmbraer E175
UA 541United Airlines17:3619:051h 29mAirbus A319
UA 4616United Airlines19:0120:301h 29mCR5
AA 1926American Airlines05:0006:261h 26mAirbus A319
UA 4423United Airlines06:0007:361h 36mCR5
AA 1997American Airlines07:2909:001h 31mBoeing 737-800
UA 2792United Airlines08:0009:311h 31mBoeing 737-800
UA 4601United Airlines09:0410:401h 36mCR5
UA 4517United Airlines10:2711:591h 32mCR5
AA 2208American Airlines11:3112:591h 28mAirbus A319
UA 4395United Airlines11:3513:111h 36mCR5
AA 6352American Airlines13:0614:391h 33mBombardier CRJ-700
AA 6468American Airlines13:0614:391h 33mBombardier CRJ-700
UA 1920United Airlines13:2915:001h 31mBoeing 737-700
AA 6355American Airlines14:4716:101h 23mBombardier CRJ-700
UA 5332United Airlines15:1116:461h 35mEmbraer E175
AA 4259American Airlines17:2719:051h 38mEmbraer E175
UA 541United Airlines17:3619:051h 29mAirbus A319
UA 4616United Airlines19:0120:301h 29mCR5
AA 1926American Airlines05:0006:261h 26mAirbus A319
UA 4423United Airlines06:0007:361h 36mCR5
AA 1997American Airlines07:2909:001h 31mBoeing 737-800
UA 2792United Airlines08:0009:311h 31mBoeing 737-800
UA 4601United Airlines09:0410:401h 36mCR5
UA 4517United Airlines10:2711:591h 32mCR5
AA 2208American Airlines11:3112:591h 28mAirbus A319
UA 4395United Airlines11:3513:111h 36mCR5

Showing the first 40 of 139 scheduled STL to ORD departures across 7 days with service, starting October 22, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every STL to ORD date on the interactive map

Aircraft on the St. Louis to Chicago nonstop

In the schedule table on this page, United Airlines flies the Bombardier CRJ, the Boeing 737-800, the Boeing 737-700, the Embraer E175, and the Airbus A319, and American Airlines flies the Airbus A319, the Bombardier CRJ-700, the Boeing 737-800, and the Embraer E175. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on STL to ORD departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for St. Louis to Chicago to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

American Airlines award space was open on 11 of the 14 St. Louis to Chicago departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Confirmed upgrade or award seats by date on the STL to ORD departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See STL to ORD on the interactive route map, with schedules, connections, and route statistics.

Airlines flying St. Louis to Chicago nonstop

Carriers operating STL to ORD nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See STL to ORD on the interactive map →

Frequently asked questions about STL to ORD

How long is the flight from St. Louis (STL) to Chicago (ORD)?
Scheduled flight times from St. Louis (STL) to Chicago (ORD) run from 1h 23m to 1h 38m across the departures in the schedule table on this page. The nonstop covers about 258 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from STL to ORD?
United Airlines and American Airlines fly STL to ORD nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from STL to ORD?
About 149 nonstop flights a week run between St. Louis (STL) and Chicago (ORD) in the current schedule, operated by United Airlines and American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from STL to ORD depart?
Scheduled STL to ORD nonstops in the next 7 days with service leave between 05:00 and 19:01, local time at St. Louis. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate STL to ORD nonstop?
The schedule table on this page lists 16 flight numbers for STL to ORD nonstops, including UA 2792, UA 4395, UA 4423, UA 4517, and UA 4601 on United Airlines, and AA 1926, AA 1997, and AA 2208 on American Airlines. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on STL to ORD?
Open the STL to ORD route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss STL to ORD upgrade or award space

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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